Is this what has been happening or have the dire prognostications been different over time and just mashed together by the media/people not remembering the deta

Is this what has been happening or have the dire prognostications been different over time and just mashed together by the media/people not remembering the details? In 1980, was the prediction that there would be experiencing the consequences of climate change, such as coral bleaching? As that is happening now. So warning that we need to avoid climate change for the past 50 years makes perfect sense. This is not a singular disaster, but rather a sliding scale.